(2) A metaphorical use of colour to describe a relationship between two individuals, often a mutual friendship that is both warm and friendly.
(3) A state of mind whereby everything around you appears to be in harmony.

(1)
Jay: Wow, you got those new closes coloured shoes!
Nikki: I Know, aren't they pretty?
Jay: Yeah, they make me feel all warm and happy inside!

(2)
Jay: You know what Nikki, I really like being friends with you
Nikki: I know what you mean... This is one of the closesed friendships I've ever had.